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grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4785

Aircon retrofit with a difference

Hello all,

I've got a bit of a plan for the 90. I fancy A/C but not the clunky bolt on under dash job a la factory.

I currently have a D2 setup in the workshop minus evaporator.

I plan to fit a modified heater box with evap and ducting to allow recirc.

My question is, has anyone fiddled with aircon bits to make a working system out of bits and pieces?

The wiring and switching side doesn't concern me. It more pipes and rads that might be more complicated to get right.

So any experience shared would be great

2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton

3rd Jul 2019 11:05pm

ajps72

Member Since: 08 Jan 2012
Location: Lima Peru
Posts: 105

I have used a retrofitsystem, i have a 2001 td5.
The condenser is in the normal position on the front, no fan, the front end is standard.
The compressor is a little bigger so I have to un bolt it to change the centrifugal filter.
The evaporator is in the rear on top of the back door.

The air comes front the back and cools everything like an AC of a room no small vents heating your face, BUT it could freeze the ideas of the people on the back seat Augusto

Defender 110 TD5 2001
Discovery 4 TDV6

4th Jul 2019 1:46am

130dreamer

Member Since: 29 Feb 2008
Location: Romford
Posts: 100

Grafty, I am thinking along the same lines.
I have a D2 HVAC unit and blower together with the control unit and wiring loom.
I am planning to use the defender condenser and compressor and get the defender air con pipes altered to fit. The low pressure side should be relatively easy, I am not sure about the high pressure side.

What I haven't worked out yet is how to use the HVAC unit. One option is to use the whole unit as it is and mount it where the air filter box is. That would mean relocating the intake pipes and air filter. It would also mean cutting into the bulkhead for the vent holes.
The other option is to re-engineer the HVAC unit to fit where the current heater fits but that could end up being a lot of complex work if I try to keep all of the electronic controls for the flaps etc.
How are you planning to modify the heater box and evaporator?

4th Jul 2019 7:15pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4785

I plan on extending the standard heater box with an evaporator on the cold side. Also a duct from the rear with a selectable flap for recirc or outside air

4th Jul 2019 8:30pm

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